1. Theories of Emotion Does your heart pound because you are afraid... or are you afraid because you feel your heart pounding?

2. Cannon-Bard Theory of Emotion Emotion-arousing stimuli simultaneously trigger: –physiological responses –subjective experience of emotion Sight of oncoming car (perception of stimulus) Pounding heart (arousal) Fear (emotion)

3. James-Lange Theory of Emotion Experience of emotion is awareness of physiological responses to emotion-arousing stimuli Fear (emotion) Pounding heart (arousal) Sight of oncoming car (perception of stimulus)

4. James-Lange (cont.) Subjects report feeling more sad when viewing scenes of war, sickness, and starvation if their “sad face” muscles are activation. They also find comic strips funnier if their “happy face” muscles are activated.

5. Schachter’s Two Factor Theory of Emotion To experience emotion one must: –be physically aroused –cognitively label the arousal Cognitive label “I’m afraid” Fear (emotion) Sight of oncoming car (perception of stimulus) Pounding heart (arousal)

6. Schachter’s Two-Factor (cont.) InjectionToldEmotion Group 1 EpinephrineWill increase arousal Mild Group 2 EpinephrineWill have no effect Strong Epinephrine Study:

7. Schachter’s Two-Factor (cont.) Swinging Bridge Study Would you like my phone number?

8. Reviewing the three Emotion follows (lags behind) arousal Emotion occurs at the same time as arousal Arousal + Cognitive label  Emotion

9. Arousal and Performance Performance peaks at lower levels of arousal for difficult tasks, and at higher levels for easy or well- learned tasks Performance level LowArousalHigh Difficult tasksEasy tasks Yerkes-Dodson Law

10. Experiencing Emotion Does money buy happiness? Year 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Average per-person after-tax income in 1995 dollars Percentage describing themselves as very happy $20,000 $19,000 $18,000 $17,000 $16,000 $15,000 $14,000 $13,000 $12,000 $11,000 $10,000 $9,000 $8,000 $7,000 $6,000 $5,000 $4,000 1930 1940 1950 1960 1970 1980 1990 2000 Percentage very happy Personal income

11. Experiencing Emotion Adaptation-Level Phenomenon –tendency to form judgements relative to a “neutral” level brightness of lights volume of sound level of income –defined by our prior experience Relative Deprivation –perception that one is worse off relative to those with whom one compares oneself

12. Happiness is... Researchers Have Found That Happy People Tend to Have high self-esteem (in individualistic countries) Be optimistic, outgoing, and agreeable Have close friendships or a satisfying marriage Have work and leisure that engage their skills Have a meaningful religious faith Sleep well and exercise However, Happiness Seems Not Much Related to Other Factors, Such as Age Gender (women are more often depressed, but also more often joyful) Education levels Parenthood (having children or not) Physical attractiveness

13. Experiencing Emotion Catharsis –emotional release –catharsis hypothesis “releasing” aggressive energy (through action or fantasy) relieves aggressive urges

14. Opponent-Process Theory of Emotion Strong Neutral Strong First experience (a) Strong Neutral Strong After repeated experiences (b)

15. Emotion- Lie Detectors Polygraph –machine commonly used in attempts to detect lies –measures several of the physiological responses accompanying emotion perspiration heart rate blood pressure breathing changes

16. Emotion- A Polygraph Examination

17. Emotion- Lie Detectors Control Question –Up to age 18, did you ever physically harm anyone? Relevant Question –Did the deceased threaten to harm you in any way? Relevant > Control --> Lie

18. Emotion- Lie Detectors Control question Relevant question Control question Relevant question (a)(b) Respiration Perspiration Heart rate

19. Emotion- Lie Detectors 50 Innocents 50 Theives –1/3 of innocent declared guilty –1/4 of guilty declared innocent (from Kleinmuntz & Szucko, 1984) Percentage Innocent people Guilty people 80 70 60 50 40 30 20 10 0 Judged innocent by polygraph Judged guilty by polygraph